OP, to me your biggest concern not getting a fake oil, so stick to the list you trust. Better real oil than fake oil.
Given your hot climate, thicker is fine, even better probably.
The M1 5W30 ESP is a thicker Euro rated 30 grade oil with a HTHS of 3.5 cP, which sounds perfect. But it's a mid-SAPS oil at 0.8% so fine for regular oil change intervals (OCI) but don't extend to a longer drain. It's excellent pour point also suggests that it's a PAO based synthetic (Group IV).
MS-6395 is not a difficult standard to reach, any reasonable oil should pass, but most don't bother going through the extended in car test.
However that M1 5W30 ESP passes some much harder test and carries much better Euro specifications
Quote
Applications
Mobil 1 ESP 5W-30 is recommended for all types of modern automobile engines, especially the high-performance gasoline and diesel engines found in the latest passenger cars, SUVs and light vans.
•Mobil 1 ESP 5W-30 is especially suitable for extreme conditions, where conventional oil often may not perform
Specifications and Approvals
This product has the following approvals:
VW 504 00
VW 507 00
PORSCHE C30
PSA B712290
GM dexos2
MB-Approval 229.31
MB-Approval 229.51
MB-Approval 229.52
Peugeot/Citroën Automobiles B71 2297
Properties and Specifications
Grade SAE 5W-30
Viscosity, cSt @ 100°C, mm2/s, ASTM D445
11.8
Sulfated Ash, mass%, ASTM D874
0.8
Hi-Temp Hi-Shear Viscosity @ 150 C, mPa.s, ASTM D4683
3.5
Pour Point, °C, ASTM D97
-48
Density @ 15 C, g/cm3, ASTM D4052
0.8458
The big question to me is what quality fuel do you have ? As in ppm sulphur. If you have low quality high sulphur fuel, then I would reduce your OCI as the acid would build up faster with high sulphur fuel and so you need to change your oil more often.